Dennis was part of the group involved in founding the UK fuel cell power technology and engineering company Intelligent Energy (IE) in 2001. He focused on business development and commercialisation of its PEM fuel cell technologies for a range of markets including automotive, aviation, stationary and portable power.
IE is now owned by Meditor Energy, part of the Meditor Group. Dennis currently covers External Affairs for IE and on behalf of IE is the Vice Chair of the Hydrogen London group; Chair of the UK H2Mobility grouping; and a Director of the USA Fuel Cell & Hydrogen Energy Association (FCHEA). He is also Vice Chair of the UK Hydrogen & Fuel Cell Association and Chairman of the UK Centre of Excellence in Low Carbon and Fuel Cell Technologies – Cenex.
Dennis had previously been a Practice Leader at the global consulting firm of Booz Allen & Hamilton, a Principal with AT Kearney; and a Partner with Roland Berger & Partners Strategy Consultants. He was previously the Managing Director of MERC (Netherlands) and the co-founder of the shipping and logistics firm MDS Transmodal. He is an Economist by profession.